Surface-enhanced analytical procedures and substrates

Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is inorganic

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427 211, 427 213, 427287, 4273831, 427404, 427414, 422 57, 422 8205, 422 8208, 436172, 436518, 436526, 436527, 436531, 436532, 436534, 436805, G01N 33553

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active

058375520

ABSTRACT:
Surfaced-enhanced, analytical procedures wherein a surfaced article includes a substrate surface, metal islands, a spacing/coupling agent layer, and binding partner molecules which bond with work piece molecules to be detected. A population of spaced apart metal islands are formed on the substrate and have at least some interconnections formed between them. A continuous layer coats the islands and all surfaces between the islands. The continuous layer includes a coupling agent which immobilizes first binding partner molecules. The first partner molecules bond to the coupling agent and the second binding partner molecules bind to the first binding partner molecules to allow detection of presence or concentration of the work piece binding partner molecules.

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